Tool holster



FIG. 1 is a front view of the invention.

FIG. 2 is a left side view of the invention, the right side being identical thereto.

FIG. 3 is a rear view of the invention.

FIG. 4 is a top view of the invention; and,

FIG. 5 is a bottom view of the invention. 

The ornamental design for a tool holster, as shown and described. 